Answer:
12x-23
Step-by-step explanation:
Answer:
3) 174°15'18"
4) 34.859722...(repeating)°
5) 434°, -286°
Step-by-step explanation:
There are 60 minutes in a degree, and 60 seconds in a minute.
3) To find minutes, multiply fractional degrees by 60:
.255° = 0.255°×(60'/1°) = 15.3'
To find seconds, multiply fractional minutes by 60:
0.3' = 0.3'×(60"/1') = 18"
Then the whole angle is ...
174.255° = 174° 15' 18"
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4) The conversion works the other way, too.
34° 51' 35" = 34° +51(1/60)° +35(1/3600)° = (34 619/720)°
= 34.8597222...° (a repeating decimal)
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5) Add or subtract multiples of 360° to get co-terminal angles.
74° +360° = 434°
74° -360° = -286°
Answer:
17)-3,0,3
18)-9,-3,9
19)-6, -3, 1, 3
20) -9, -5, -1, 0
21) -4, -3, -2, -1,0
22)-15, -10, -5, 10
Step-by-step explanation:
if your getting confused, just imagine a number line in your head or write one on your paper, that has negative numbers on the left side and positive numbers on the right side
(ex: ....-3, -2, -1, 0, 1, 2, 3....)
remember that the number that is in the left side is always less than the the number on the right side, meaning the number on the right side of the number line is greater than the number on the left side.
Step-by-step explanation:
cross multiply
2x - 4 = 4 × 5
2x - 4 =20
collect like terms (CLT)
2x = 20 + 4
2x=24
divide both sides by 2
x=12